|
表4.2 観測点数の月別変化
| |
month |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
TOTAL |
| JODC保有 |
POD以外 |
5,319 |
10,803 |
10,606 |
13,117 |
20,082 |
15,860 |
19,803 |
21,793 |
17,639 |
20,163 |
16,067 |
6,423 |
177,675 |
| POD |
3,161 |
5,924 |
8,465 |
11,099 |
11,020 |
12,398 |
7,766 |
9,549 |
10,031 |
9,975 |
6,747 |
4,169 |
101,204 |
| その他 |
0 |
1 |
52 |
50 |
42 |
47 |
248 |
295 |
57 |
11 |
29 |
13 |
844 |
| 日本小計 |
8,480 |
16,758 |
19,123 |
24,266 |
31,143 |
28,305 |
27,817 |
31,637 |
27,727 |
30,149 |
23,743 |
10,605 |
279,723 |
| WOD2001 |
363 |
712 |
595 |
888 |
904 |
929 |
898 |
1,048 |
1,188 |
1,215 |
791 |
602 |
10,133 |
| KODC |
262 |
3,604 |
747 |
3,963 |
603 |
4,123 |
567 |
4,174 |
428 |
3,970 |
471 |
3,627 |
26,539 |
| 海外小計 |
625 |
3,416 |
1,342 |
4,851 |
1,507 |
5,052 |
1,465 |
5,222 |
1,616 |
5,185 |
1,262 |
4,229 |
36,672 |
| total |
9,105 |
21,044 |
20,465 |
29,117 |
32,650 |
33,357 |
29,282 |
36,859 |
29,343 |
35,334 |
25,005 |
14,834 |
316,395 |
|
・ |
「POD」は、1963年より開始された水産庁漁海況予報事業による海洋観測データを示す。 |
|
このデータのうち、1993年頃（一部の機関は1995年）まではJODCのデータベースに収録済み。 |
・ |
「その他」は本業務で入力またはFETI型への変換を行った日本のデータを示す。 |
図4.13 観測点数の月別変化
表4.3 項目別の観測点数年代変化
| YEAR |
Temp |
Sal. |
pH |
DO |
PO4-P |
Si02 |
NO3-N |
NO2-N |
Chl-a |
Phaeo |
| -1900 |
72 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1901- |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1906- |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1911- |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1916- |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1921- |
6 |
6 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1926- |
180 |
171 |
83 |
46 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1931- |
5,326 |
5,104 |
682 |
598 |
544 |
562 |
0 |
0 |
0 |
0 |
| 1936- |
8,502 |
7,999 |
24 |
29 |
0 |
0 |
0 |
0 |
0 |
0 |
| 1941- |
4,320 |
3,677 |
104 |
118 |
0 |
62 |
0 |
0 |
0 |
0 |
| 1946- |
1,756 |
1,627 |
0 |
942 |
341 |
406 |
0 |
0 |
0 |
0 |
| 1951- |
3,127 |
2,989 |
136 |
1,606 |
330 |
853 |
0 |
0 |
0 |
0 |
| 1956- |
3,351 |
2,512 |
94 |
1,041 |
384 |
579 |
4 |
8 |
0 |
0 |
| 1961- |
17,067 |
10,120 |
474 |
1,053 |
518 |
413 |
0 |
38 |
0 |
0 |
| 1966- |
38,809 |
21,473 |
2,063 |
3,357 |
2,858 |
2,165 |
36 |
823 |
37 |
37 |
| 1971- |
36,288 |
20,883 |
994 |
2,358 |
1,460 |
808 |
72 |
192 |
118 |
118 |
| 1976- |
41,488 |
16,596 |
466 |
2,574 |
715 |
165 |
272 |
227 |
390 |
390 |
| 1981- |
46,608 |
19,199 |
190 |
3,559 |
1,101 |
94 |
913 |
980 |
794 |
792 |
| 1986- |
46,015 |
20,925 |
221 |
4,757 |
1,002 |
206 |
961 |
972 |
611 |
610 |
| 1991- |
36,477 |
15,204 |
762 |
5,248 |
1,326 |
721 |
756 |
1,236 |
583 |
564 |
| 1996- |
21,759 |
5,961 |
3,014 |
5,305 |
2,010 |
1,566 |
450 |
2,001 |
1,554 |
1,543 |
| 2001- |
4,502 |
1,891 |
615 |
1,514 |
638 |
549 |
87 |
638 |
323 |
323 |
| total |
315,395 |
156,160 |
9,842 |
34,259 |
13,227 |
9,149 |
3,551 |
7,115 |
4,410 |
4,377 |
|
図4.14（1）項目別の観測点数年代変化
|
|
|
